109 lines
2.8 KiB
Python
109 lines
2.8 KiB
Python
import machine
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import time
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uart = machine.UART(1)
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led = machine.Pin(25, machine.Pin.OUT)
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running = True
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last_cmd_time = time.ticks_ms()
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# Beispiel-Parameterwerte
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breite_wert = 0
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strom_wert = 0.0
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# Funktionstabelle (Name → Funktionsobjekt)
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def handle_led_on(args):
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led.value(1)
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uart.write("LED ist jetzt AN\r\n")
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def handle_led_off(args):
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led.value(0)
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uart.write("LED ist jetzt AUS\r\n")
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def handle_status(args):
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status = "AN" if led.value() else "AUS"
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uart.write(f"LED-Status: {status}\r\n")
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uart.write(f"Breite: {breite_wert}, Strom: {strom_wert}\r\n")
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def handle_go(args):
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global running
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uart.write(">> Kommando 'go' empfangen – starte Hauptprogramm.\r\n")
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running = False
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def handle_pause(args):
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try:
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sek = float(args[0])
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uart.write(f"Pausiere {sek} Sekunden...\r\n")
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time.sleep(sek)
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except (IndexError, ValueError):
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uart.write("Fehler: 'pause' erwartet eine Zahl\r\n")
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def handle_breite(args):
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global breite_wert
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try:
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breite_wert = int(args[0])
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uart.write(f"Breite gesetzt auf {breite_wert}\r\n")
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except (IndexError, ValueError):
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uart.write("Fehler: 'breite' erwartet eine Ganzzahl\r\n")
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def handle_strom(args):
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global strom_wert
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try:
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strom_wert = float(args[0])
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uart.write(f"Strom gesetzt auf {strom_wert} A\r\n")
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except (IndexError, ValueError):
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uart.write("Fehler: 'strom' erwartet eine Zahl\r\n")
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# Funktionstabelle (Befehl → Handlerfunktion)
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command_table = {
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"led_on": handle_led_on,
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"led_off": handle_led_off,
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"status": handle_status,
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"go": handle_go,
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"pause": handle_pause,
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"breite": handle_breite,
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"strom": handle_strom
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}
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# Allgemeine Eingabe-Verarbeitung
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buffer = ""
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def process_input():
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global buffer, last_cmd_time
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while uart.any():
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char = uart.read(1)
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if char:
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c = char.decode('utf-8')
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if c in ('\n', '\r'):
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cmdline = buffer.strip()
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if cmdline:
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last_cmd_time = time.ticks_ms()
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parts = cmdline.split()
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cmd = parts[0]
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args = parts[1:]
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handler = command_table.get(cmd)
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if handler:
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handler(args)
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else:
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uart.write(f"Unbekanntes Kommando: {cmd}\r\n")
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buffer = ""
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else:
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buffer += c
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# Eingabeschleife mit Timeout
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uart.write("Bereit für Kommandos (led_on, pause 1.5, go, ...)\r\n")
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while running:
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process_input()
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if time.ticks_diff(time.ticks_ms(), last_cmd_time) > 10000:
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uart.write(">> Timeout – starte Hauptprogramm.\r\n")
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break
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time.sleep(0.05)
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# Hauptprogramm
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uart.write(">> Hauptprogramm gestartet\r\n")
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while True:
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led.toggle()
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time.sleep(0.5) |